That said,we're still not going anywhere fast." Despite an $8,000 tax incentive for first time home buyers, sales of existing homes have declined two months in a row.

VOA: standard.2010.03.02

Situation number two is I take the same number, and I make a row. They are all in one row.

状态二我将采用同样的数字，并且我做了一个箭头，它们全部都在一列上。

麻省理工公开课 - 固态化学导论课程节选